Street-indicating mechanism.



I. PATERTED mm. 12, 190?. Y V'T. w. SMALL. STREET INDIGATING MECHANISM.

' APPLICATION- IILED MAY 17. 1905. 2 SHEETS-SHEET 1.'

Witt L1. 2/ e 21:60?

To all whom it concern! I A seesaw: I

. moms ricinfcmvEtlNn,

Application filed May 17,

Be it known that LsTHOMAS W. SMALL, a c1t1zenof-theUnited: States,residing at Cleveland, int'hecounty of. (Juyahoiga and State of Ohio,have :invented a-certain new and useful; Improvement inStreet-Indicating Mechanism, at whichthe followin'g'is a w an eflicientand operative street or stati full, clear, and .exact 'description,reference being had to the accompanyingzdrawings.

The object of-thisinvention is to provide dicatorfor cars and similaruses.

My indicator is positively driven bysuitable motor mechanismfin the formshown by means of a coil-spring and controlledin its movements by somesuitable controlling device, such as the electromagnet shown, thecontrolling" device being actuated either posi tively, as by hand, orautomatically, as by means of some projection placed in the path of thecars of the trolley; a

' ,The indicator disclosed is of." that type which'lincludes a striphaving the" names ofthe streets or stations placed thereon'in the PatentNo. 738,366.

separate spaces, rollers for. guiding the strip, arrangements forIeeping the strip taut, a clockwork'for drivingthe strip in eitherdirection.- i

More particularly, the present invention relates to controllingmechanism for l miting the o eration of the driving mechanism, so;

that or each actuation of the'controlling device the driving mechanismshall only operate to the extent of 'advancing'thestr p a single space.1 e I I My indicator is an improvement upon that patented by 'meonSeptember 8, 1903, under In the drawings illustrating my invention,Figure 1 is a sectional elevation with the front plate of the casing andcertain detailed ortions of the mechanism broken away.

g. 2 is anend view of the electromagnetic controlling mechanismr F1gm3is a v1ew of the electromagnetic-control glmechanisrn, taken from thesideopposite to that ofFig. 2 andshowing the pos tion of the arts immediately after the'circuit has-bee closed.

Fig.4 is an endpview taken from the right oi Fig. 1, with the casingremoved.

Specification of Letters Patent.

alm es -Ne r r. SN -AS IGN- r Patented n h 12,1907.

1905. some No. 2 0.171.

Fig. 5 is an end view,-partly in section, of the drivmg-gear with theend plate of the casing and the cross-plate of the. frame removed.

t The frame of the indicator consists of the cross-plates A A? A heldtogether by trans- F verse rods B- B B B. Distance-sleeves C C areplaced on the rods between the several plates. Surrounding the mechanismis a casing having the front plate D, to plate D bottom plate D and endplates 4 D In -%rovided with some transparent substance strip .may beread.

, ounted on shafts su orted in the crossplates A A arethr'ee ro ers insubstantially vertical alinement E E E each provided with friction-bandsE and suitably cared together at one end by the gears F F respectively.Back of these rollers are aipair of spring-barrel rollers G G earedtogether at one end by the (gears H that is, the gearsare connecte withthe-respective rollers through the intermediacy of the sprin 1 withinthe rollers. The springs of these r05 ers are wound in the samedirection withthe design of iving each a tendency to Wind up the stripone end of which is secured to G, the other end beingrsecured to G .Thestrip J passes over the ont of the rollers E and E and-behind theintermediate roller E. A

plate A and is connected by some suitable means, as a pin-and-slotconnection, with a sleeve e in such a manner as to securerotatable-connection between the two, while per- ,mitting longitudinalmovement of the sleeve; The sleeve c has at'its outer end a'handmm L L,designed, respectively, to mesh with the driving-gears moving inopposite directions, but so spaced that but one can be in gear at'atime. V The dri' -gears are operated byany suitable means, 1n thisinstance the usual winding-stem and pawl-andratchet mechanism. Thespring M drives the ear M meshingwith the ear M", which mes es withthe'pinion M, ed u on the piece L and bears near its inner end two pinbyan'ordinary coil-spring M, associated with same shaft'witha largegear M.-l e gear NTS, TO ACMEAUTOMATICSTBEET INDlGATING ooMrnNnoF the'frontplate D is an opening, preferably through which the designations on theshaft e of the roller E projects through the M transmits motion throughthe pinion M to the inion M and also the pinion M M is rigid y securedto a shaft 0, and its motion is transmitted to the gear M, therebytending to turn the inion M and the fan N. Upon the same s aft with thepinion M and the gear M is a gear M, which meshes with and tends to turna gear M t The sliding sleeve 6 bearing the pinions L, is so arrangedthat it can be moved to throw the pinion L into mesh with the gear M orcan throw the pinion L int'o mesh with the pinion M It is obvious uponan inspec-.v tion 'of the drawingsthat by this meansa reversal of thedirection of movement of the in termediate roller E and consequentlyareversal in the direction of the strip J, can thus be secured, althoughthe driving-gear wheel M always turns in the same direction.

Referring now to the device for controlling the operation of the drivingmechanism, it

will be seen that the shaft 0, with which the driving-gear is inconstant connection, bears a detent device P, rigidly attached thereto.This detent device'is provided with an overhanging flange P at oneend'and has pro- 'jecting from its peri hery a stop'P Engaging this stop anpreventing its movement in the direction of rotation is thedetent-finger R at the end of the oscillating is attachedthe armature Rplaced above an electromagnet R and arranged to approach the sameuponthe closing of the circuit. -At the end of the, lever R alongside ofor near the detent-finger R: is secured an 7 overhanging finger R, whichprojects underthe flange P.

In the flange P is a cut-away portion P provided with a cam-surface atone side for a purpose hereinafter to be de-v scribed. Secured to thefinger R and the lever B is a bracket R connected by' a pivoted link Rwith the end of a locking-arm R The locking-arm is pivoted and has oneend R projecting over the fan N in such a manner that upon thedepression of the end R it shall come into the path of the fan and ldckit against rotatio It will be seen by the arrangement of the parts abovedescribed that whenever through any means, automatic or otherwise, thecircuit in the electromagnet R is closed and the armature R iscausedthereby to approach the same the finger R will be raised, releasing thestop 1? of the detent device. Upon suchrelease the driving-spring M willimmediately, through the gears M M M M 11 M start the rotation of theshaft .0 and move the stop P forward, as seen in Fig. ,3. Si?multaneously with this movement motion will be transmitted through theshaft 0 and gear M and pinion M to the fan N. It will mechanism thecam-surface P the moving said lever, and an electromagnet be observedthat immediately upon the attraction of the armature R and the elevationof the detent-finger R the locking-arm R? will be kicked up through thelink R, and

the end R of this lockin -arm will fall in the path of the fan N, therey at once blocking all movement on the part of the driving mech anism.From this it will be apparent that it is absolutely immaterial, so faras the driving mechanism is concerned, how long the circuit through Rmechanism will not advance the strip J at al during that period, havingbeen allowed to' move but the slightest degree, merely sufficiently toallow the stop 1 to be thrown for the detent-finger balanced at that endand will pull down with it one end of the lockin -lever R therebylifting the end B clear of the fan N. When this takes place, there willbe no lock interposed in the mechanism, and the gears will be free toturn, feeding the strip J forward. Immediately upon the starting of thedriving will enga e the overhanging finger R and will slide-the fingerunder the flange P. This latter arrangement insures that the lever willbe held down in such. way that the detent 'finger R will be in positionto catch the stop P after it makes one revolution. Upon this engagementof the .stop I? bythe detent-finger R all movement in the mechanism willof course be blocked.

By the proper proportioning of the'parts described it will be seen thatwith each revolution of the detent device the strip J may be movedforward Whatever distance is required. Having described my invention, Iclaim- 1. In a machine of the character described, an indicating device,means for advancing the same, a projection provided upon one of parts ofsaid advancing mechanism, a lever having a detent-finger normally in thepath of said projection, a cam rotatable with said projection andconnected with said lever to'hornially prevent the removal of saiddetent, a locking device connected with for operating said lever.

' 2. In a machine of the character described, an indicating device, thesame, a projection provided upon one of the'rotating parts of saidadvancing mechanism, an oscillating lever having at one end adetent-finger normally in the path of said projection, an -internal camrotatablewith said projection and having a recess, a mem- .remainsclosed, and the drivin means for advancing said member when theprojection engages the detent, an electromegnet for operating saidlever, and. a locking'devioe controlled by i said lever.

In testimony whereof I hereunto affix my slgnature in the presenceof'two witnesses.

T. W. SMALL.

Witnesses:

EQB; GILGHRIST, W. L. MCGARRELL.

